Abstract
Conference Title: 2017 IEEE International Conference on Power, Control, Signals and Instrumentation Engineering (ICPCSI) Conference Start Date: 2017, Sept. 21 Conference End Date: 2017, Sept. 22 Conference Location: Chennai, India Coupled Parabolic transmission lines in inhomogeneous media is analyzed. The solution is used to design microwave directional couplers. The designed coupler has much improved coupling characteristics compared with coupler using uniform line.